DE102020122697A1 - METHOD FOR RESONANCE SOUND SIGNAL GENERATION, DEVICE FOR RESONANCE SOUND SIGNAL GENERATION, PROGRAM FOR RESONANCE SOUND SIGNAL GENERATION AND ELECTRONIC MUSIC DEVICE - Google Patents

Abstract

A method for resonant sound signal generation includes providing an instruction configured to generate a sound signal corresponding to a received pitch and generating a resonant sound signal. The method also includes receiving multiple damper actuation with respect to multiple pitches in a first pitch range. The method also includes providing an instruction configured to produce the resonant sound signal based on an additional sound related to the multiple damper actuation when the multiple damper actuation is received.

Description

BACKGROUND

Technical area

The present disclosure relates to a resonance sound signal generation method and a resonance sound signal generation device for generating a resonance sound signal, a resonance sound signal generation program, and an electronic music device comprising the resonance sound signal generation device.

Description of the prior art

In an acoustic piano, a plurality of dampers are provided at positions each corresponding to strings. When a damper pedal is depressed, all of the dampers in contact with the respective strings are lifted off the strings. When a player depresses a key while depressing the damper pedal, the string corresponding to the depressed key vibrates, and resonance sound is generated due to the vibration of all other strings.

An existing electronic musical instrument produces a resonance sound. This electronic musical instrument is intended to simulate a resonance sound in an acoustic piano by convolving impulse response waveform data with musical sound waveform data.

SHORT REPRESENTATION

When a damper pedal in an acoustic piano is depressed by a player, a sound is generated because a damper rubs against the string as it moves away from a string. Alternatively, when an operation for releasing the depression of the damper pedal is performed by the player, a sound is generated by the contact of the damper with the string. Meanwhile, there is no damper physically in the electronic musical instrument, so that such a sound corresponding to an operation of the damper pedal is not generated. Furthermore, the sound produced in accordance with this operation of the damper pedal is irrelevant to the original performance. However, the player expects an electronic musical instrument to behave similarly to an acoustic piano in order to get a feeling of a more realistic live performance.

An object of the present disclosure is to provide a resonance sound signal generation method and a resonance sound signal generation device for enabling the generation of a sound more similar to a sound to be generated in an acoustic piano, a resonance sound signal generation program, and an electronic music device.

A method for resonant sound signal generation according to an aspect of the present disclosure comprises: providing an instruction to generate a sound signal corresponding to a received pitch, producing a resonant sound signal, receiving a multiple damper actuation with respect to a plurality of pitches in a first pitch range, and providing an instruction to generate the resonant sound signal based on an additional sound relating to the multiple damper actuation when the multiple damper actuation is received.

The additional sound can include a sample waveform produced in advance.

The additional sound can be created by performing a waveform process on random noise.

The additional sound can be created by combining several kinds of sounds.

The additional sound can be controlled according to operation information of the multiple damper operation.

Providing an instruction to generate the resonance sound signal may provide an instruction to combine the additional sound in a predetermined ratio with the resonance sound signal generated based on the additional sound.

Receiving the multiple damper actuation may include receiving application or cancellation of a damper effect with respect to multiple pitches in the first pitch range to which the damper effect is applied.

An apparatus for resonance sound signal generation according to another aspect of the present disclosure includes: a sound signal instruction unit that provides an instruction to generate a sound signal corresponding to a received pitch, a resonance sound generation unit that generates a resonance sound signal, a multiple damper operation receiving unit that provides a multiple damper operation with respect to a plurality of pitches in a first pitch range, and a resonance sound instruction unit that instructs the resonance sound generation unit to generate the resonance sound signal based on an additional sound related to the multiple damper operation when the Multiple damper actuation is received in the multiple damper actuation receiving unit.

The program for resonant sound generation according to another aspect of the present disclosure causes a computer, a process for providing an instruction to generate a sound signal corresponding to a received pitch, a process for producing a resonance sound signal, a process for receiving a multiple damper operation with respect to multiple pitches in one first pitch range and a process of providing an instruction to generate the resonance sound signal based on an additional sound related to the multiple damper operation when the multiple damper operation is received.

An electronic music apparatus according to a further aspect of the present disclosure comprises: the above-mentioned apparatus for resonance sound signal generation, a tone generation unit that generates a sound signal of the additional sound as instructed by the apparatus for resonance sound signal generation, and an output unit that generates a resonance sound of the additional sound based on the Outputs resonance sound signal generated by the resonance sound signal generating apparatus.

Other features, elements, properties, and advantages of the present disclosure will become more apparent from the following description of preferred embodiments of the present disclosure with reference to the accompanying drawings.

Figure list

• 1 Fig. 13 is a block diagram showing the configuration of the electronic music apparatus including a resonance sound signal generating apparatus according to an embodiment of the present disclosure;
• 2 Fig. 13 is a diagram showing a performance operating unit according to the embodiment;
• 3 Fig. 13 is a block diagram showing the functional configuration of the resonance sound signal generating apparatus and peripheral devices according to the embodiment;
• 4th Fig. 13 is a flowchart showing a resonance sound signal generation method to be carried out in the resonance sound signal generation apparatus according to the embodiment; and
• 5 Fig. 13 is a diagram showing the envelope waveform of a sound signal to be generated in an electronic music apparatus according to the embodiment.

DETAILED DESCRIPTION

A resonance sound signal generation apparatus, a resonance sound signal generation method, a resonance sound generation program, and an electronic music apparatus according to embodiments of the present disclosure will be described in detail below with reference to drawings.

Configuration of the electronic music device

1 Fig. 13 is a block diagram showing a configuration of an electronic music apparatus 1 including the resonance sound signal generating device 100 according to an embodiment of the present disclosure. Since it is a device that electronically generates sound, the electronic music device 1 , which are the resonance sound signal generating apparatus 100 of the present embodiment comprises no string and no damper. A task of the electronic music device 1 , which are the resonance sound signal generating apparatus 100 of the present disclosure is to provide a performance feel similar to an acoustic piano to a player by artificially generating a sound to be generated in response to an operation of a damper pedal.

The electronic music device 1 from 1 is, for example, an electronic keyboard musical instrument. The electronic music device 1 has a performance actuator 2 , Adjustment actuators 3 and an ad 4th on. In the present embodiment, the performance operation unit comprises 2 a keyboard 20th and a damper pedal DU and is with a bus 14th connected. The keyboard 20th the performance actuation unit 2 may be an image of a keyboard displayed on a screen of a touch panel display mentioned below.

The adjustment actuators 3 include operation switches that are turned on and off, operation switches that are rotatably operated, or operation switches that are slidably operated, etc., and are with the bus 14th connected. The adjustment actuators 3 are used for various settings, including adjusting the volume and turning a power supply on and off. The ad 4th For example, has a liquid crystal display and is on the bus 14th connected. A name of a piece of music, a score or other various information is on the display 4th displayed. The ad 4th can be a touch panel display. In this case, part or all of the performance operating unit 2 or the adjustment actuators 3 on the display 4th are displayed. The player can provide instructions for various actuations by viewing the display 4th actuated.

The electronic music facility 1 further comprises a tone generating unit 5 and a sound system 6th . The sound generating unit 5 is by bus 14th and outputs audio data (an audio signal) based on a pitch generated by an operation of the performance operating unit 2 referred to as. The audio data is sample data (e.g., PCM (Pulse Code Modulation) data) that represents the waveform of a sound. The following is audio data that is generated by the tone generation unit 5 output is referred to as a sound signal. The sound generating unit 5 stores sound signals of all pitches in advance. The tone generating unit also stores 5 a sound signal of an additional sound related to a multi-damper operation mentioned below. The sound system 6th includes a digital-to-analog (D / A) conversion circuit, an amplifier and a speaker. The sound system 6th converts in from the tone generating unit 5 converts the input sound signal into an analog sound signal and generates a sound based on the analog sound signal. The sound system 6th is an example of an output unit in the present disclosure.

The electronic music device 1 further comprises a storage device 7th , a CPU (Central Processing Unit) 8th , a RAM (Random Access Memory) 10 , a ROM (Read Only Memory) 11 and a communication interface 12th . The storage device 7th , the CPU 8th , the RAM 10 , the ROM 11 and the communication interface 12th are on the bus 14th connected. In addition, via the communication interface 12th an external device such as an external storage device 13th to the bus 14th be connected.

The storage device 7th includes a storage medium such as a hard disk, an optical disk, a magnetic disk, or a memory card. A computer program such as the resonance sound signal generation program P1 is stored in the storage device 7th saved.

The RAM 10 is z. B. a volatile memory that is used as a work area for the CPU 8th is used and temporarily stores various data. The ROM 11 is z. B. a non-volatile memory and stores a control program. The ROM 11 can store a computer program such as the resonance sound signal generation program P1. The CPU 8th does this in the storage device 7th or the ROM 11 stored resonance sound signal generation program P1 to carry out the below-mentioned resonance sound signal generation method. The storage device 7th , the CPU 8th , the RAM 10 and the ROM 11 form the device for generating resonance sound signals 100 .

The resonance sound signal generation program P1 can be supplied in a stored form in a computer-readable recording medium and in the storage device 7th or in ROM 11 to be installed. Further, the resonance sound signal generation program P1 in the external storage device 13th get saved. Further, the resonance sound signal generation program P1 supplied from a server connected to a communication network in a case where the communication interface 12th connected to a communication network in the storage device 7th or in ROM 11 to be installed.

Configuration of the performance operation unit 2

2 is a schematic diagram showing the keyboard 20th and the damper pedal DU shows that in the performance operating unit 2 from 1 are included. As in 2 shown shows the keyboard 20th several keys KE, which are arranged in a row. Pitch that ascend in the order from left to right are assigned to the multiple keys KE arranged in a row. In the present embodiment, the keyboard includes 20th 88 keys KE. The number of in the keyboard 20th however, it is not limited to this.

In the keyboard 20th in the present embodiment, 88 keys KE are divided into two pitch ranges, as in FIG 2 shown. A first pitch range S1 has a similar function to a key with a damper in an acoustic piano. A second pitch range S2 has a similar function to a key without a damper in an acoustic piano. That is, when no key KE is pressed by the player, the control is carried out similarly to a case in which a damper effect is applied to all keys KE in the first pitch range S1. In a case where any key KE is pressed by the player, the control is similar to a case where a damper effect applied to the pressed key KE is canceled by the pressed key KE.

The damper pedal DU is a pedal operated by the player, which is arranged close to the feet of the player. As described above, the keys KE in the first pitch range S1 have a similar function to the keys with attenuators in one acoustic piano. When the player presses the damper pedal DU with his foot, the damper effect applied to the first pitch range S1 is canceled. That is, the damper effect that is applied to all keys KE in the first pitch range S1 is canceled at the same time. The cancellation of the damper effect means that control is carried out to achieve the effect similar to the effect obtained in a case where a damper is lifted from a string corresponding to each key in an acoustic piano. In this state, when the player presses any key KE in the first pitch range S1 or the second pitch range S2, resonance sounds (string resonance sounds) of all pitches are generated. In a case where any key KE is pressed by the player, resonance sounds (string resonance sounds) of all pitches in the second pitch range S2 are generated regardless of whether the damper pedal DU is operated.

When the player lifts his foot off the damper pedal DU, the damper effect is applied to the first pitch range S1. The application of the damper effect means that control is carried out to achieve the effect similar to the effect obtained in a case where a damper is in contact with a string corresponding to each key in an acoustic piano . The performance actuation unit 2 that receives an operation to apply and cancel the damper effect need not be a pedal, but may be a switch or a button.

Functional configuration of the resonance sound signal generation apparatus 100

3 Fig. 13 is a block diagram showing the functional configuration of the resonance sound signal generating apparatus 100 and their peripheral devices. As in 3 shown comprises the apparatus for resonant sound signal generation 100 a designation receiving unit 101 , a sound signal instruction unit 102 , a multiple damper actuation receiving unit 103 , a resonance sound instruction unit 104 and a resonant sound generation unit 105 . The function of each component ( 101 to 105 ) of the device for generating resonance sound signals 100 is realized when the CPU 8th from 1 that in the storage device 7th or the ROM 11 executes stored program for resonance sound signal generation P1 while the RAM 10 is used as a work area.

When the player presses a key KE the keyboard 20th is pressed, a note-on event (hereinafter abbreviated as note-on) including the pitch corresponding to the pressed key KE is generated. The note-on corresponds to a state transition of the key KE from an OFF state to an ON state. Furthermore, when the player presses a key KE of the keyboard 20th releases, a note-off event (hereinafter abbreviated as note-off) including the pitch corresponding to the released key KE is generated. The note-off corresponds to the transition of the KE key from the ON state to the OFF state.

The designation receiving unit 101 receives actuation information of a key KE in the keyboard 20th is included. The actuation information of a key KE includes information relating to a pitch, a note-on, a note-off and an actuation intensity of the key KE. The designation receiving unit 101 performs the sound signal instruction unit 102 and the resonance sound instruction unit 104 the received actuation information.

The sound signal instruction unit 102 instructs the tone generation unit 5 on, the sound signal corresponding to a received pitch based on that from the designation receiving unit 101 to generate supplied actuation information. In a case where a note-on to an arbitrary pitch is shown in the operation information, the sound signal instruction unit 102 the sound generating unit 5 starts to generate the sound signal of the received pitch. In a case where a note-off of an arbitrary pitch is shown in the operation information, the sound signal instruction unit 102 the sound generating unit 5 to stop the sound signal of the received pitch.

The multiple damper actuation receiver unit 103 receives the operation information of the damper pedal DU. The operation information of the damper pedal DU includes the information relating to a damper pedal-on, a damper pedal-off, and an operation intensity of the damper pedal DU.

The resonance sound instruction unit 104 receives the operation information of a key KE from the designation receiving unit 101 . Further, the resonance sound instruction unit receives 104 a production instruction of a resonance sound signal from the multiple damper operation receiving unit 103 . The resonance sound instruction unit 104 instructs the tone generation unit 5 to output a sound signal of an additional sound related to multiple damper operation. The resonance sound instruction unit 104 has the resonant sound generation unit 105 start producing or stopping a resonant sound signal.

The resonance sound generation unit 105 produces a resonant sound signal based on the instruction given by the Resonance sound instruction unit 104 provided. That from the resonance sound generation unit 105 The resonance sound signal produced includes two types that are a resonance sound signal based on string resonance and a resonance sound signal based on an additional sound of multiple damper operation. In the present embodiment, an operation of simultaneously turning on or off the damper effect with respect to all keys KE by operating the damper pedal DU differs from an operation performed at the time of normal key depression (an operation of turning on or off the damper effect individually in relation to a pressed key KE) and is referred to as "multiple damper actuation".

A resonance sound signal based on string resonance is a sound signal that simulates the sound produced by vibration of the string of the key KE from which a damper effect based on a sound signal based on a depressed key KE is canceled. The sound signal (the sound signal corresponding to a received pitch) produced by the sound generating unit 5 based on an instruction issued from the sound signal instruction unit 102 is provided is the sound system 6th and the resonance sound generation unit 105 fed. In a case where from the tone generating unit 5 is output, become the resonance sound generation unit 105 Multi-pitch sound signals are supplied. Based on a generation instruction, one from the resonance sound instruction unit 104 received resonance sounds and one from the tone generation unit 5 The sound signal supplied is produced by the resonance sound generation unit 105 a resonance sound signal based on string resonance.

Specifically, in a case where the damper pedal DU is not depressed (in a case where the damper effect is applied to the first pitch range S1), the resonance sound instruction unit has 104 the resonance sound generation unit 105 to produce resonance sound signals to be generated on a received pitch and pitches in the second pitch range S2 based on the received pitch. In a case where the damper pedal DU is depressed (in a case where the application of the damper effect is canceled in the first pitch range S1), the resonance sound instruction unit has 104 the resonance sound generation unit 105 to produce resonant sound signals to be generated at all pitches based on the received pitch.

A resonance sound signal based on an additional sound of multiple damper operation is the resonance sound signal produced based on the additional sound produced by an operation of depressing the damper pedal DU (an ON operation) or an operation of releasing the depression of the damper pedal DU (an OFF actuation) is generated. The sound signal of the additional sound generated by the ON operation of the damper pedal DU or the sound signal of the additional sound generated by the OFF operation of the damper pedal DU is set in advance in the tone generation unit 5 saved. The resonance sound generation unit 105 produces a resonance sound signal based on a generation instruction of a resonance sound issued by the resonance sound instruction unit 104 is received, and a sound signal of an additional sound of the damper pedal DU produced by the sound generating unit 5 is fed.

In the present embodiment, a sound signal obtained by digitizing an additional sound of multiple damper operation recorded in advance at a predetermined sampling rate is set in the tone generating unit 5 saved. That is, the additional sound generated by an ON operation of the damper pedal DU and the additional sound generated by an OFF operation of the damper pedal DU are respectively created in the tone generation unit 5 stored as sampling waveforms.

An example of a method of resonant sound signal generation

4th Fig. 13 is a flowchart showing the resonance sound signal generation method used in the resonance sound signal generation apparatus 100 from 3 is performed. The method of resonance sound signal generation from 4th runs when the CPU 8th from 1 executes the resonance sound signal generation program P1 stored in the storage device 7th or the ROM 11 is stored. 5 Fig. 13 is a diagram showing envelope waveforms generated by the tone generating unit 5 output sound signals and that from the resonance sound generation unit 105 shows output resonance sound signals.

It will be on 4th referenced. First, the designation receiving unit determines 101 whether the operation information representing a note-on is received (step S11 ). When the player kE any key on the keyboard 20th pushes, performs the performance operation unit 2 the operation information representing a note-on of the pitch corresponding to the depressed key KE of the designation receiving unit 101 to.

In a case where the designation receiving unit 101 not the actuation information receives that represent a note-on, the process continues with the step S13 away.

In a case where the designation receiving unit 101 receives the operation information representing note-on, the operation information representing note-on becomes the sound signal instruction unit 102 fed. The sound signal instruction unit 102 instructs the tone generation unit 5 to output the sound signal according to the received pitch (step S12 ). Thus, the tone generating unit gives 5 the sound signal to the sound system according to the received pitch 6th out. The sound system 6th converts the sound signal into an analog sound signal and outputs the sound that corresponds to the converted analog sound signal from the speaker. Thus, the sound corresponding to the key KE pressed by the player becomes the sound system 6th issued.

Next, the designation receiving unit determines 101 whether the operation information representing a note-off is received (step S13 ). When the player kE any key on the keyboard 20th lets go of the performance actuation unit 2 the operation information representing a note-off of the pitch corresponding to the released key KE of the designation receiving unit 101 to.

In a case where the designation receiving unit 101 does not receive the actuation information that constitutes a note-off, the process continues with step S15 away.

In a case where the designation receiving unit 101 receives the operation information representing note-off, the operation information representing note-off becomes the sound signal instruction unit 102 fed. The sound signal instruction unit 102 instructs the tone generation unit 5 to stop the sound signal according to the pitch received (step S14 ). Thus, the tone generating unit stops 5 the output of the sound signal to the sound system 6th according to the pitch received.

In 5 represents a waveform E1 the envelope waveform of a sound signal of a normal pressure sound. Further, M1 represents an ON / OFF operation state of a key KE in 5 . In 5 a key KE is pressed at a time t1 (key ON) and a key KE is released at a time t3 (key OFF). That is, a note-on event is generated at time t1 and a note-off event is generated at time t3. The key is pressed in the period from time t1 to time t3.

The waveform E1 of the normal pressure sound comprises an attack phase in which the signal intensity suddenly increases after the KE key is pressed, and a decay phase in which the signal intensity drops rapidly after the attack. Then waveform E1 includes a sustain phase in which the signal intensity gradually decreases. The waveform E1 then includes a release phase in which the signal intensity drops to the minimum level after the key KE is released.

Next, the multiple damper operation receiving unit determines 103 whether the cancellation of the damper effect is received (step S15 ). That is, the multiple damper operation receiving unit 103 determines whether an ON operation of the damper pedal DU (an operation of the player's depression of the damper pedal DU) is received. When the multiple damper actuation receiving unit 103 receives the cancellation of the damper effect, the resonance sound instruction unit instructs 104 the sound generating unit 5 and the resonance sound generation unit 105 to produce the resonance sound signals based on a received pitch and an additional sound related to multiple damper operation (step S16 ). In particular, the resonance sound instruction unit provides 104 an instruction for producing a resonance sound signal based on string resonance and for generating a resonance sound signal based on an additional sound that simulates a friction sound generated by an ON operation of the damper pedal DU.

In response to receiving the instruction from the resonance sound instruction unit 104 gives the tone generating unit 5 the sound signal of the received pitch and the sound signal of the additional sound related to the multiple damper operation to the resonance sound generation unit 105 out. The received pitch is the sound that is that of the label receiving unit 101 received Note-On. Further, an additional sound related to multiple damper operation is the sound simulating a frictional sound generated by ON operation of the damper pedal DU. In response to the instruction by the resonance sound instruction unit 104 produces the resonance sound generating unit 105 Resonance sound signals based on the sound signal of the received pitch and the sound signal of the additional sound (step S19 ). The resonance sound generation unit 105 outputs the resonance sound signal based on the sound signal of the received pitch and the resonance sound signal based on the sound signal of the additional sound to the sound system 6th out. The sound system 6th converts the resonance sound signals into analog sound signals and outputs the Sounds that match the converted analog sound signals from the speaker. Thus, the resonance sound (string resonance sound) is made by the sound system based on the pitch corresponding to the note-on 6th issued. Further, the resonance sound of the additional sound related to the operation of the damper pedal DU by the player becomes of the sound system 6th issued.

In step S15 determines, in a case where the cancellation of the damper effect is not received, the multiple damper operation receiving unit 103 whether the application of the damper effect is received (step S17 ). That is, the multiple damper operation receiving unit 103 determines whether an OFF operation of the damper pedal DU (an operation for releasing the depressing operation of the damper pedal DU by the player) is received. When the multiple damper actuation receiving unit 103 receives the application of the damper effect, the resonance sound instruction unit instructs 104 the sound generating unit 5 and the resonance sound generation unit 105 to produce the resonance sound signal based on the additional sound related to the multiple damper operation (step S18 ). In particular, the resonance sound instruction unit provides 104 provides an instruction to produce the resonance sound signal based on the additional sound simulating the friction sound generated by an OFF operation of the damper pedal DU.

In response to receiving the instruction from the resonance sound instruction unit 104 gives the tone generating unit 5 the sound signal of the additional sound related to the multiple damper operation to the resonance sound generation unit 105 out. In particular, there is the tone generation unit 5 the sound signal of the additional sound simulating the contact sound generated by an OFF operation of the damper pedal DU to the resonance sound generation unit 105 out. In response to the instruction by the resonance sound instruction unit 104 produces the resonance sound generating unit 105 the resonance sound signal based on the sound signal of the additional sound generated from the tone generation unit 5 is supplied (step S19 ). The resonance sound generation unit 105 outputs the resonance sound signal to the sound system based on the sound signal of the additional sound 6th out. Thus, the additional sound related to the operation of the player's damper pedal DU becomes the sound system 6th output as a resonance sound signal.

In 5 a waveform E21 represents the envelope waveform of a sound signal simulating an additional sound produced by canceling the damper effect. A waveform E22 represents the envelope waveform of a sound signal that simulates an additional sound produced by applying the damper effect. Also represented in 5 M2 the ON and OFF operating states of the damper pedal DU. In 5 the damper pedal DU is depressed at time t1 (pedal-ON), and the depression of the damper pedal DU is released at time t2 (pedal-OFF). The damper pedal DU is continuously depressed in the period from time t1 to time t2. Specifically, the operation of depressing the damper pedal DU is released from a point of time slightly earlier than time t2, and the damper pedal DU is completely released at time point t2.

A waveform E31 is the envelope waveform of the resonance sound signal produced based on the sound signal of the additional sound represented by the waveform E21. That is, the waveform E31 represents the resonance sound based on the additional sound produced by canceling the damper effect. A waveform E32 is the envelope waveform of the resonance sound signal produced based on the sound signal of the additional sound represented by the waveform E22. That is, the waveform E32 represents the resonance sound based on the additional sound generated by applying the damper effect. In the present embodiment, no additional sound related to an operation of the damper pedal DU is generated, and the resonance sound is generated based on the additional sound. That is, the sound signals represented by the waveform E21 and the waveform E22 are not generated, and the resonance sound signals generated based on the waveform E21 and the waveform E22 are generated. In this way, the player can get a performance feeling more like an acoustic piano. A waveform E4 is the envelope waveform of the resonance sound signal produced on the basis of the sound signal of a received pitch.

Effects

According to the present embodiment, the resonance sound signal generating apparatus produces 100 a resonance sound signal based on an additional sound related to multiple damper operation. In particular, in the case where the damper pedal DU is depressed by the player, the resonance sound signal is produced on the basis of the additional sound that simulates a frictional sound caused by cancellation the damper effect is generated. In a case where the player's depression of the damper pedal DU is released, a resonance sound signal based on the additional sound simulating a contact sound produced by applying the damper effect is produced. Thus, a resonance sound to be generated in a natural keyboard musical instrument such as an acoustic piano can be reproduced more authentically. The player can get a performance similar to that of an acoustic piano.

Further, according to the present embodiment, the resonance sound signal generating apparatus produces 100 a resonant sound signal based on a received pitch. The player can get a performance similar to that of an acoustic piano.

In the above-mentioned embodiment, the additional sounds related to multiple damper operations are made in the tone generating unit 5 stored in advance, for example, as sound signals of the sampling waveforms. In another embodiment, additional sound related to multiple damper actuation can be produced by performing a waveform process on random noise. In this case, the tone generating unit 5 a random noise production circuit and a control circuit for controlling an envelope waveform of random noise. The control circuit performs a random noise filtering process and the waveform process for controlling an envelope waveform, and produces a sound signal that simulates an additional sound related to multiple damper operation.

Furthermore, in a further embodiment, different additional sounds can be prepared for different pitches. For example, in a case where there is an additional sound in the tone generating unit 5 as a sound signal of a sampling waveform stored in advance as described in the above-mentioned embodiment, sound signals of plural kinds of additional sounds in the tone generating unit 5 saved in advance. The sound generating unit 5 outputs the plural kinds of additional sounds to the resonance sound generation unit 105 out. The resonance sound generation unit 105 produces the resonance sound signals based on the several kinds of additional sounds. An additional sound can be prepared for each pitch or for each sound range including multiple pitches. Then, although a plurality of additional sounds can be mixed at the same ratio, a resonance sound signal can be produced by mixing a plurality of additional sounds at predetermined different rates.

Furthermore, in a further embodiment, an additional sound can be produced by combining several sounds. For example, in a case where there is an additional sound in the tone generating unit 5 as a sound signal of a sampling waveform stored in advance as described in the above-mentioned embodiment, plural kinds of sound signals are stored in the tone generating unit 5 saved in advance. The sound generating unit 5 produces an additional sound by combining plural kinds of sound signals in a predetermined ratio, and sends the produced additional sound to the resonance sound generation unit 105 issues. The resonance sound generation unit 105 produces a resonance sound signal based on the combined additional sound.

Furthermore, in a further embodiment, an additional sound can be set through the behavior of a multiple damper actuation. For example, two different kinds of additional sounds related to multiple damper operation are prepared. In a case where the acceleration of the multiple damper operation is equal to or greater than a predetermined threshold value, both kinds of additional sounds are sent to the resonance sound generation unit 105 is output, and a resonance sound signal is generated based on the two kinds of additional sounds in the resonance sound generation unit 105 produced. In a case where the acceleration of the multiple damper operation is smaller than the predetermined threshold value, only one of the two kinds of additional sounds is sent to the resonance sound generation unit 105 is output, and a resonance sound signal is generated based on the one additional sound in the resonance sound generation unit 105 produced. Further, the greater the acceleration of the multiple damper operation, the louder the volume of the resonance sound can be set.

Further, in the above-mentioned embodiment, only the resonance sound based on the additional sound is made by the sound system 6th without producing the additional sound related to the multiple damper actuation. In another embodiment, the additional sound related to multiple damper operation and the resonance sound based on the additional sound may be mixed in a predetermined ratio and by the sound system 6th are issued.

The resonance sound generation unit 105 The present embodiment produces a resonance sound signal based on an additional sound related to multiple damper operation when the damper pedal DU is operated. The additional sound is the sound that simulates a frictional sound when the damper is lifted from all keys KE by actuation of the damper pedal DU. Therefore, in a case where the damper pedal DU is depressed with the keys KE depressed, the resonance sound generation unit can 105 can be prevented from producing a resonance sound signal based on an additional sound. Since all keys KE are pressed, this means that the damper is already lifted from all keys KE.

In the above-mentioned embodiment, the resonance sound signal is intended to be generated based on the additional sound related to a damper operation regardless of the absence or presence of a key press operation. In another embodiment, the resonant sound generation unit 105 produce a resonant sound signal based on an additional sound associated with the detection of key press operation information.

While preferred embodiments of the present disclosure have been described above, it should be understood that variations and modifications will be apparent to those skilled in the art without departing from the scope and spirit of the present disclosure. The scope of the present disclosure should therefore be determined solely by the following claims.

Claims (10)

Method for generating resonance sound signals, comprising: Providing an instruction configured to generate a sound signal corresponding to a received pitch; Producing a resonant sound signal; Receiving a multiple damper actuation with respect to multiple pitches in a first pitch range; and Providing an instruction configured to generate the resonant sound signal based on an additional sound related to the multiple damper actuation when the multiple damper actuation is received. Resonance sound signal after Claim 1 wherein the additional sound comprises a sample waveform generated in advance. Method for generating resonance sound according to Claim 1 , where the additional sound is created by applying a waveform process to random noise. Method for generating resonance sound signals according to Claim 1 , wherein the additional sound is created by combining several kinds of sounds. Method for generating resonance sound signals according to Claim 1 , wherein the additional sound is controlled according to operation information of the multiple damper operation. Method for generating resonance sound signals according to Claim 1 wherein providing an instruction configured to generate the resonant sound signal is providing an instruction configured to combine the additional sound in a predetermined ratio with the resonant sound signal generated based on the additional sound. Method for generating resonance sound signals according to Claim 1 wherein receiving the multiple damper actuation comprises receiving an application or cancellation of a damper effect with respect to a plurality of pitches in the first pitch range to which the damper effect is applied. Apparatus for generating resonance sound signals, comprising: a sound signal instruction unit that provides an instruction to generate a sound signal corresponding to a received pitch; a resonance sound generating unit that generates a resonance sound signal; a multiple damper operation receiving unit that receives a multiple damper operation with respect to a plurality of pitches in a first pitch range; and a resonance sound instruction unit that instructs the resonance sound generation unit to generate the resonance sound signal based on an additional sound related to the multiple damper operation when the multiple damper operation is received in the multiple damper operation receiving unit. Resonant sound signal generation program that causes a computer to perform a process to: Providing an instruction configured to generate a sound signal corresponding to a received pitch; Generating a resonant sound signal; Receiving a multiple damper actuation with respect to multiple pitches in a first pitch range; and providing an instruction configured to generate the resonant sound signal based on an additional sound related to the multiple damper actuation when the multiple damper actuation is received. An electronic musical device comprising: the resonance sound signal generating device according to Claim 7 ; a tone generation unit that generates a sound signal of the additional sound as instructed by the resonance sound signal generation device; and an output unit that outputs a resonance sound of the additional sound based on the resonance sound signal generated by the resonance sound signal generating device.

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